System Memory; Overview; Memory Configurations - Asus P5QL-I SI User Manual

1.4

System memory

1.4.1

Overview

The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. The figure illustrates the location of the DDR2 DIMM sockets:
1.4.2

Memory configurations

You may install 512MB, 1GB, 2GB and 4GB unbuffered non-ECC DDR2 DIMMs into the
DIMM sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps the
• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
• Due to the memory address limitation on 32-bit Windows
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
This motherboard supports up to 8GB on Windows
Vista x64 editions. You may install a maximum of 4GB DIMMs on each slot.
1-4
total size of the lower-sized channel for the dual-channel configuration. Any excess memory
from the higher-sized channel is then mapped for single-channel operation.
recommended that you obtain memory modules from the same vendor.
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows
- Install a 64-bit Windows
the motherboard.
Channel
Channel A
Channel B
OS when you want to install 4GB or more memory on
®
XP Professional x64 and Windows
®
Sockets
DIMM_A1
DIMM_B1
OS, when you install 4GB
®
Chapter 1: Product introduction
OS.
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®